Maya Ellison
Plastic is everywhere, and it's cheap to make and profitable. But does it get recycled? The short answer is: not often. In the United States, only about 5% to 6% of plastics are recycled each year. That means about 91% of plastic isn't recycled. This is due to a range of factors, including the high costs of infrastructure and recycling processes, the difficulty of properly sorting and cleaning materials, and the challenges of recycling certain types of plastic. Despite the low recycling rates, the plastic industry has been accused of misleading the public about the viability of recycling.
| Characteristics | Values |
|---|---|
| Percentage of plastic waste produced in the US that is recycled | 5-6% |
| Plastic waste that is not recycled | 91% |
| Plastic waste that is thrown in the trash | 100% |
| Plastic waste that is recycled | 100% |
| Plastic waste that is sent to landfills | 100% |
| Plastic waste that is incinerated | 100% |
| Plastic waste that is recycled into lower-quality products | 100% |
| Plastic waste that is recycled into new products | 100% |
| Plastic waste that is downcycled | 100% |
| Plastic waste that is recycled into fleece jackets and carpeting | 100% |
| Plastic waste that is recycled using electro magnetic frequencies | 100% |
| Plastic waste that is shipped overseas for recycling | 100% |
| Plastic waste that is recycled near rural areas | 100% |
| Plastic waste that is recycled using advanced recycling technology | 100% |
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What You'll Learn
- Plastic recycling rates are low, with only 5-6% of plastic recycled in the US
- Plastic is cheap to produce, so recycled plastic is more expensive
- Plastic is difficult to recycle due to the need for sorting and cleaning
- Plastic with food residue usually cannot be recycled
- Plastic is a pollutant, causing microplastic water contamination
Plastic recycling rates are low, with only 5-6% of plastic recycled in the US
Plastic recycling rates are notoriously low, with only 5-6% of plastic recycled in the US. This means that almost 95% of plastic waste ends up in landfills, the ocean, or scattered in the atmosphere. The US Department of Energy's research paper analysed data from 2019 and confirmed this meagre recycling rate.
There are several reasons why plastic recycling rates are so low. Firstly, there is a shortage of the costly infrastructure required for recycling. Kate Bailey, chief policy officer with the Association of Plastic Recyclers, attributes the low rate to this lack of infrastructure. Recycling infrastructure is more prevalent in large cities, and rural areas often cannot afford to implement it.
Another issue is the challenge of properly sorting and cleaning plastic materials. The recycling process can be time-intensive and expensive, and many types of plastic cannot be recycled more than once without acquiring defects and contaminants. Plastic with food residues, for example, usually cannot be recycled, and only good quality, clean plastics can be recycled. The process is also energy-intensive, and the cost of recycling makes new plastic relatively cheaper.
Furthermore, the US has struggled to offload its plastic waste to other countries. For a while, China took billions of pounds of plastic waste from the US, but in 2018, the country banned most waste imports. This left the US with a shortfall in capacity, and the rising issue of plastic waste has become more apparent.
The low recycling rates have significant environmental implications. Plastic does not chemically degrade, but instead breaks apart to form microplastics, which have been found in oceans, snow, rainfall, the air, and even in human blood and breast milk. To address the low recycling rates and environmental impact, systemic solutions are needed, including turning off the "plastic tap" by avoiding the use of plastic products and supporting initiatives to end plastic pollution.
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Plastic is cheap to produce, so recycled plastic is more expensive
Plastic is cheap to produce, but it is also shockingly profitable. This is due to the high demand for plastic products and the low cost of the raw materials used to make them. However, despite the many benefits of recycling plastic, it is often more expensive than producing new plastic. This is because the process of recycling plastic is energy-intensive and requires a significant amount of time and effort. For example, the collection, sorting, and cleaning of plastic waste can be time-consuming and costly.
Additionally, the recycling process itself can be challenging due to the various types of plastic and the presence of food or oil residues, which can render plastic unfit for recycling. The cost of recycling plastic also depends on the price of oil, which is constantly rising, and the availability of recycling infrastructure, which is lacking in many rural areas. Furthermore, the functionality of recycled plastic products may be called into question, potentially reducing their appeal to manufacturers.
The high cost of recycling plastic is a significant challenge in the efforts to reduce plastic waste and promote environmental sustainability. While it may be cheaper to produce new plastic, the consequences of plastic pollution are far-reaching and detrimental. Plastic waste does not chemically degrade but breaks apart into microplastics, which have been found in oceans, snow, rainfall, and even human blood. This has led to growing concerns about the impact of plastic pollution on human health and the environment, underscoring the urgency of addressing the high cost of plastic recycling.
To address the issue of costly plastic recycling, various strategies can be considered. These include providing clearer instructions to consumers for effective recycling, decoupling the recycling process from the profit motive, and implementing policies that reflect the true costs of petroleum products. By tackling these challenges, we can make plastic recycling more accessible and affordable, contributing to a more sustainable future.
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Plastic is difficult to recycle due to the need for sorting and cleaning
Plastic is inherently difficult to recycle due to its complex chemical makeup and durability. It is composed of several different polymer types, each with its own unique characteristics and resin type. This means that different plastics melt at different temperatures, and so they must be separated before they can be properly recycled.
The process of sorting plastic for recycling is a complex and meticulous one. It involves a symphony of innovation and expertise, with cutting-edge technology and human involvement working together to ensure accuracy. Sorting systems are equipped with an array of sensors and optical scanners that identify and categorize plastic items based on attributes such as density, colour, and behaviour when exposed to specific wavelengths of light. Once a specific type of plastic is identified, pneumatic systems use air jets to divert the plastic into different collection bins.
However, there are still instances where manual intervention is necessary. Plastic items with irregular shapes or unusual colours can pose a challenge for the sensors, requiring skilled workers to step in and ensure correct sorting decisions are made. Before the sorted plastic can be processed, it must also undergo an extensive washing process to remove any remaining impurities. This multi-step process can be time-consuming and costly, and it is not always effectively implemented.
The challenges of sorting and cleaning plastic for recycling are further compounded by the fact that only certain types of plastics are worth recycling. Most plastics worsen in quality when recycled, a process known as downcycling. This results in a material that is inferior in quality and can only last through one or two more cycles before becoming redundant. The focus on recycling may also distract from more effective solutions, such as reducing plastic use and designing out waste.
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Plastic with food residue usually cannot be recycled
Plastic is a highly profitable and versatile material, but it is also a significant contributor to pollution and waste. While almost all plastic can be recycled in principle, the reality is that 91% of plastic is not recycled. This is due to a variety of economic, technical, and environmental barriers.
One of the main issues with plastic recycling is contamination by food and other substances. Plastic with food residue usually cannot be recycled because it is deemed unfit for the process. The oily residue left on plastic containers, for example, can make them unrecyclable. Even a small amount of liquid or food waste can render an entire batch of recyclables unusable. This is because recycling facilities need to process huge amounts of plastic daily to be profitable, and contaminated batches can spoil large quantities of otherwise recyclable material.
In addition, many plastic items include multiple types of plastic and different layers, which are challenging and costly to separate. This is true of plastic items like straws and toothbrushes, which come into contact with food and liquids during their use and are therefore considered contaminated.
The market for recycled plastic is also fragmented, making it difficult for sellers to find buyers. This, combined with the high costs of building and operating recycling facilities, means that many carefully selected recyclables end up in landfills or incinerators instead.
While recycling is an important part of the solution to the plastic pollution crisis, it is clear that other measures are also needed to address the issue.
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Plastic is a pollutant, causing microplastic water contamination
Plastic is cheap to produce and highly profitable, and has become a ubiquitous part of our lives. However, it is also a significant pollutant, with far-reaching consequences for the environment and human health.
The vast majority of plastic is not recycled. In the United States, only about 5-6% of plastics are recycled each year. While many plastic items are imprinted with arrows and numbers, indicating that they can be recycled, in reality, this is often not the case. The numbers actually refer to the type of plastic and its potential to be recycled. Even when plastic is recycled, it is often downcycled, meaning it is used to create lower-quality products, and it is very difficult or impossible to recycle many types of plastic more than once without causing defects. Furthermore, only good-quality, clean plastics can be recycled, and the process is time-intensive and expensive.
The plastic that is not recycled often ends up in the ocean, where it breaks down into microplastics—pieces smaller than five millimeters in diameter. These microplastics are a form of marine debris and have been found in significant quantities in the ocean, snow, rainfall, the air, and even in human blood, colons, lungs, veins, breast milk, placentas, and fetuses. They can come from larger plastic pieces that have degraded, or from microbeads, tiny pieces of manufactured polyethylene plastic used in health and beauty products, which pass through water filtration systems and end up in the ocean.
Microplastics have been identified as an emerging pollutant and a serious concern, particularly in water sources. They have been detected in drinking water, and it is estimated that each adult ingests 0.2–1.2 × 10^6 microplastics annually through this route. They can also act as vectors, sorbing chemical pollutants and contributing to the bioaccumulation of pollutants in marine ecosystems, which can then enter the human food chain. The potential health risks associated with microplastics include oxidative stress, cytotoxicity, disruption of energy homeostasis and metabolism, immune function disruption, neurotoxicity, and cancer.
To address the issue of microplastic water contamination, systematic management and innovative research are needed to reduce plastic waste, remove microplastics from wastewater treatment facilities, and increase the use of biodegradable plastics. Additionally, consumers can play a role by reducing their use of plastic and supporting plastic-free alternatives.
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Frequently asked questions
Only about 5% to 6% of plastics are recycled each year in the United States. About 91% of plastic is not recycled.
Plastic is cheap to produce and profitable, so there is little incentive to recycle it. Plastic is also expensive to recycle as it is time-intensive and costly to collect, sort, and clean.
Plastic that is not recycled often ends up in landfills or the ocean, where it breaks apart to form microplastics, which have been found in the air, water, and even human blood.
Plastic #1 (PET) and plastic #2 (HDPE) are the most recyclable types of plastic. However, even plastics that are technically recyclable may not actually be recycled due to various challenges and limitations in the recycling process.
